Caster arm for a mowing machine



FIG. 1 is a perspective view of a caster arm for a mowing machine,showing my new design;

FIG. 2 is a right end elevational view thereof, the opposite end being amirror image;

FIG 3 is a front elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a bottom plan view thereof.

The ornamental design for a caster arm for a mowing machine, as shownand described.